First the good news: Dexter McCluster does not have MRSA after suffering an ankle infection that kept him out of practice Thursday and Friday, the Chiefs confirmed to NFL Media.

Now the bad news: The wide receiver has been downgraded from questionable to out, and he will not travel to Oakland for Sunday's game against the Raiders.

An MRI and scan previously ruled out structural damage to McCluster's injured ankle. The team had been waiting for the cultures to come back before determining whether he had MRSA, a type of staph infection that is resistant to certain antibiotics.

McCluster has 46 catches for 438 yards and one receiving touchdown to go with his 54 punt returns for 631 yards and two touchdowns. The Chiefs will miss the versatile receiver against the Raiders, but getting him healthy for the playoffs is the priority.